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<div class="moz-cite-prefix">On 10/03/2015 07:57 AM,
<a class="moz-txt-link-abbreviated" href="mailto:matthew@mrstevens.net">matthew@mrstevens.net</a> [LakelandARC] wrote:<br>
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interesting post from Scientific American
concerning the lack of reliable wireless
communication in aircraft in 1915 – just one
of those fas...</div>
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</blockquote>
<big><big><b></b>Matthew:<br>
<br>
It would be quite simple in today's aviation. We use the sky
writing concept, except the air craft could fly in a straight
line and we use smoke oil, injected into the exhaust. just down
stream of the exhaust valves. The exhaust flame burns the smoke
oil and it exhaust as white smoke.<br>
<br>
The oil valve is very fast operating and a series of dots is
very easy to write.<br>
<br>
During the Sun n Fun air shows, we buy it by the truck load in
55 gallon barrels.<br>
<br>
However, now days, the issue would be, to find observers on the
ground that can read Morse code, and to keep it secret, we
would need to go back to the Cryptographers.<br>
<br>
That's a long way from a Quadracopter, and a wireless camera. <br>
<br>
Don KI4EFL <br>
<br>
</big></big><br>
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